下列系统哪些属于采用光电原理监测的血培养系统（）

A.BioArgos系统

B.BacT／Alert系统

C.Bactec9000系列

D.Vital系统

E.ESP系统

In software engineering and systems engineering, (71) is a description of a system's behavior as it responds to a request that originates from outside of that system．

A．black box
B．business rule
C．use case
D．traceability matrix